Apparatus for shaping metal objects by means of fluid-pressure.



No. 650,755. Patented Efiay 29, I900.

' C. HUBER.

APPARATUS FOR SHAPING METAL OBJECTS BY MEANS OF FLUiD PRESSURE.

(Application mad Max. 6, 19004) (No Nodal.)

- which'i'concussions liquid the body to CARL HUBER, or CARLSRUHE, GERMANY.

APPARATU FOR SHAPING METAL OBJECTS BY MEANS OF FLUID-PRESSURE.

SPECIFIGATION fOrming part of Letters Patent No. 650,755, dated May 29, 1900;

Application filed March 0 1900- Sei'ial'No. 7,545- (No modeh) To all whom, it may concern.

Be it known that I, CARL HUBER, acitizen of Austria-Hungary, theimer Allee, Oarlsruhe, Baden, in the Einpire of Germany, have invented a certain new and useful Apparatus for Shaping Metal Objects by Means of Fluid-Pressure, (for which application has been made for a'patent in Great Britain, dated January 29, 1900, No. 1,819,) of which "the following is a specification, Y

My invention relates to pressure-chambers the interiors-of whichare subjected to a high degree of fiuidrpressure and into which are introduced metal objects combined with molds so arranged thatboth the exposed surfaces of the metal object and of the mold are subject ed to the pressure of the 'fl'uid-in-the chamber, whereby the metal object is made to assume the configuration of themold. A m'ethodof operating for this purpose was described in my application forLetters Patent filed J auu-' ary 29,1900, Serial-No.'3,206.

I- have discovered that i'n operating upon the bodies to be shaped according to theabove process a greatly-increased eftect is produced if atthe same time that'the.bodylissubjected to the statical pressureof the fluid the latter is subjectedto peated concussions, momentarily increased to a certain extent;v

Iha've found that by such :co'ncussive action superadded to the statical pressure of the be shapedis much mo're readily made to a'ssum'e thefcoirfiguration' of the mold, particularly if this be formed with more or' less finelyrecessed parts, than if it be subjected only-to the statical pressure of p the liquid.

For carrying out any said inyentiou-there is combined with .any suitable apparatus whereby the liquid in a pressure-chamber is sub ected toahigh degree of pressure an auxiliary apparatus'consistiug of. 'af small plunger which is'made to enter or is-in communication with the pressure-chamber containin g the object to be molded and which when the liquid therein has been raised to the required high degree of pressure is subjected by asuitable percussion device to a succession .of'

residing at 38 Breiera series of rapidly-re whereby its pressure isp are consequently trans-J mitted bythe-fluid to the object and its molfd.

chamber-A, filled with water or other-suitable duced the objects to be acted upon combined with their molds,

preferabl y in the manner de 29, 1900, Serial No; 3,206., This chamber is formed or fixed on the upper end of a plunger, B, working in a hydraulic'cylinder 0, formed in the lower part of the framing D.' The crosspacking into the construction, adapted to exercise blows in rapid succession and the piston-rod of which passes through a channel formed in the crosshead,so that its lowerend can bear upon the head of. the plunger G. Thus, assuming the water i'n'chamber Ate be subjected to the requiredliigh pressure byfthe forcing up of the plunger '13, the atmospheric hammeris then putjnj-opera-tion,so'as to efiect'arapid suc cession of strong'blows upon the plunger G,

series of concussions to. the water in the chameifect isproduced of causing the-objects to assumo. more rapidly and effectually the con-' 'guration of jthemoldthanjwould be the case if; they'were only subjected. to the statical pressure exerted by the plunger F.

- In place of the atmospheric hammer'flmay be employed any other-known apparatus that can exercise a series of rapid strong blows.

non-compressible liquid, into which are intro-,

head E of the framing carries a plunger F,

fixed an atmospheric ham merH, of an y knownber A, and thereby momentarily raises the; pressure th'erein,wh"erebythe-abovedescribed The apparatus consists of a strong pressurescribed in my said application filed J an-uary which; in its turn transmits a corresponding 7 Having thus described the nature of this invention and the best means I know of carrying the same into practical effect, I claim- 1. In apparatus for subjecting objects to a high degree of liquid-pressure the combination of a pressure-chamber containing liquid and the objects to be treated means for exercising a high degree of statical pressure upon such liquid and means for subjecting the said liquid to a series of rapidly-repeated concussions while it is subjected to the statical pressure, substantially as described. I

2. Apparatus for subjecting objects to a high degree of liquid-pressure, the combination of -a pressure-chamber containing liquid and the objects to be treated, a plunger adapted to close the open end of said chamber and to subject the contents thereof to high statical pressure, asecond smaller plunger also in contact with the liquid in the chamber, and a hammering device adapted to subject such second plunger to a series of rapidly-repeated sharp blows, substantially as and for the purposes described.

3. In apparatus for subjecting objects to a high degree of liquid-pressure the combination of a pressure-chamber containing liquid and the objects to be operated upon, a large plunger carrying such pressure-chamber and working in a hydraulic cylinder, a small stationary plunger held immediately above the open upper end of the pressure-chamber so that when the latter is raised by the liquidpressure. beneath its plunger, said second plunger will enter the pressure-chamber and will subject its contents to pressure, a chan nel formed longitudinally through such second plunger containing a third plunger, and a percussion device adapted to effect a series of rapidly-repeated blows upon such third plunger whereby the latter is made to transmit to the liquid in the pressure-chamber a corresponding series of concussions, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two suliiscribingwitnesscs.

n. w. 11mm, J. ADRIAN. 

